Cardano has integrated the x402 protocol, developed by Coinbase and Binance, as confirmed by founder Charles Hoskinson. This integration, facilitated by Masumi's decentralized protocol, enables automated and verifiable payments between AI agents using USDM stablecoins and ADA for transaction fees. The x402 protocol allows for on-chain actions such as token minting through simple web payments, positioning Cardano as a key financial infrastructure for AI-driven economies. Masumi's refund and identity mechanisms are incorporated to ensure trust and reliability in these transactions.